If my account is on Blahaj and the community I moderate is on another instance like lemmy.world, and the user is from an instance we defederate from like hexbear, I won’t see the hexbear user’s comments (or even their user if I search for it) from my Blahaj instance, and so I don’t see a way I can moderate their comments on the lemmy.world instance I moderate.
Does this seem right? Is there any workaround?
(I guess I could make an account on the same instance as the community I moderate just for moderating that instance?)
You can ban directly using Tesseract and if mod actions federate there it’ll ban them, and it’ll also remove their comments if you tick remove submissions. I’ve done it before for users banned from Blahaj but commenting in our communities.